This presentation focuses on transportation energy demand modelling and its application in urban transportation planning. With increasing constraints (price and availability) of fossil fuels, modelling demands for transportation energy is receiving increasing attentions from transportation demand modellers. Unlike transportation externalities (e.g. greenhouse gas emission, air pollutions, etc.) energy constraints in urban transportation are more direct and palpable. So, there is a renewed need for better models of transportation energy demands in urban transportation planning and policy analysis. However, unlike economics, the main objective of energy demand investigation in transportation planning is more on end-user impacts (e.g. managing supply and demand of transportation services catering for energy constraints) than the national or global energy policies in general. This presentation will give an overview of existing practices in transportation energy demand modelling and the need and scope of further advancements.